As far as non-Dallas & non-I Dream Of Jeanie roles, I liked him in Blake Edwards' SOB, one of my favorite 1970's movies.

Not a starring role, but fun anyway.

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Rimmer, on what period of history to live in-
“Well, It’d be the 19th century for me, one of Napoleon’s marshals.
The chance to march across Europe with the greatest general of all time and kill Belgians” - (White Hole).